If you're not using your Kurobox 24 hours a day, it could be good to allow the HDD to spin down (Will reduce noise and power usage). For this you'll need to install hdparm to tune the sleep delay, and to configure syslog to prevent it from logging a "MARK" every 20 minutes !

Install and configure HDParm

Installation

apt-get install hdparm

Configuration

To be completed

Configure syslogd

If you do not do that, your HDD will be turned on every 20 minutes because syslog will log a "MARK" in /var/log/messages every 20 minutes. So we need to remove that marking :
edit /etc/init.d/sysklogd and set SYSLOGD to